Vertical flame oil burner



Jan. 15, 1957 J, BERGER VERTICAL FLAME OIL BURNER 4 2 Sheets-Sheet l Filed June 18, 1954 FN m INVENTOR.

2 Sheets-Sheet 2 Filed June 18, 1954 INVENToR. U'Ac K BE @GER BY V l. I4 /QW 2,771,510 VERTICAL FLAME oIL BURNER JackBerger, Laurelton, N. Y. Application June 1s, 1954, serial No. 437,689 z Ciaimt. (ci. 15s-'28)' The4 present invention relates to oil burners.

More particularly, the present invention relates to an arrangement of oil burner parts in the interior' of an air tube of an'oilburner, and more especially inthe interior of the air tube of a vertical` llame oil burner.

In conventional oil burner installations( there is a blower which blows air along a horizontallyvextending air tube' -to an outlet Where the air mixes with atoniized fu-el, and the mixture is then burned. l In theV so called vertical flame oil burner, the llame extends vertically from` the horizontally extending'- air tube'so'that the"y airy aswell as the fuel "flowing'sfu'bstantiallyy lhoriz'ofntally along the interior of the air tube turn'thiougha right` angle before' being' burned. This turning to produce the vertical artre creates certain difficulties in the maintenance of the parts. y Thus,`the ignition and n'zzle assembleL must be eapable of directing" the fuel-air mixture upwardly While' the components ofthe mixture lare received horizontally front the air tube, and as a result this' nozzle and ignition assembly 4in the known constructions ea'nnot'be removed for maintenance purposes unless the'entirefair tube is removed from thel furnace or the like. Such removal of the entire burner is very undesirable because of the time and Work involved; Furthermore, in vertical flame' oil burners of known constructions' there is no means for controllingthe air supplied while the installation remains operatively connected to tite Vfurnace.

One .of thek objects ot" thepesent invention isto over'- cdme" thelabove'd'rawback's by providing a vertical flame oil burner which isf-capablel of ltav'irig'itsV nozzle and ignitionAv assemble'removed from and inserted in4 to the in` terior' of the air tube without in* any way disturbing the latter. g l g l Another object of the present inventionlis to provide anI ceediiigly simple arrangement for'enabling'y the nozzl aridignition assembly aswell .as certain' other parts connected thereto to be quickly and easily removed from and' reinserted into' thekoil burner tube.' y

A further object of thepre'sent invention isto provide a' means adjustable from the exterior' of the' air' tube While the,latteny is' mounted in its operative positionfor con'- trllirig the air flowing to the space' surrounding the nozfzle Wlierethis air becomes mixed with the: atomized fuel. A

An yaddio provide an'arrangme'nt vvlier'ev thisfaiirfcor'itrolV incansis removable,froml the interior ofthe air tubey together with other,partsy rcorinec to the nozzle and ignition assembly andl together' tlieA latter assembly.

it rs' also an o'bjcf or the' present inventions@ pro vide a structure' dp, ble of viaccoriiplisliin'g all of the abb-ve; Objeels' a at" thersanie um'ebjeing made up" of simple4 and ruggedly constructed part'sfwhiclivare very reliable in operation and which` have a long life;

With the above objects, inT view the present invention maiali' sli'stsfa vertaal Heise. Oil, Pufif .which i11- cldes an elongated air tube and a llame control means @i3-ject er", nie' presentan-venues is" to' located -at'one end portion of the tube for controlling a llame which is propagated transversely to thev length 'of the tube. A `nozzle and ignition assembly islocate'd Anexty to the amecontrol means for producing a flame to be controlled thereby,'this assembly being removably mount' 'edk in the air tube at the end portion thereof where the llame control means is located. A fuel supply means connected to the nozzley and ignition'as'sembly and extends therefrom along the interior of the"=air tubel towardV an opposite end thereof, this" fuelV supply means being rie`` rr'iovably'A connected to the airtube and adapted tolb'e con'- nected with a source of fuel located outside oft-'he air tube.

rent supply means also removably connected to the air tube. i

the flow of air from the interior of the air tube through the assembly, this air control means extending fromthe assembly through the interior of the air tube toward its end portion distant from the llame control means and througha wall portionof theair tube to a point at the exterior thereof; the end portion df' the air tube distant fromthe flame con'trolmeans for closing and opening the air tube and for providing upon being opened a passage tliraugh which' the nozzle and ignition assembly together with 'the air control means, fuely supply means; and current supply meansv may be removed from yand inserted into the air tube Without disturbing the latter;

The novel features which are ccinsideredv as characteristic for the invention' are set forth in particular in the' appendedY claims. Theinvention itself, however, both as to its construction and its methodof operation, to` gether with additional objects and advantage thereof,`will be best understood from the followingdescription of specific embodiments when ready in connection with the accompanying drawings, in which:

Fig. l is -a partly sectionalvievv takenk in a vertical plane longitudinally"extending through an air tubev of au oil burner and illustrating the arrangement of the present 1'nvention in the interior of the air tube;

Fig. 2 is -a partly sectional plan View taken along the line r2 2 of Fig'.- 1 in theV direction of the arrows;

Fig; 3 isa side `view of the parts which arey removable from and insertable into the air tube of the oil burner;

.and

Fig. 4 is a fragmentary View taken in the direction of arrow A of Fig. 3' and showing 'the construction of the parts :at the bottom side of the nozzle andv ignition'` assembly.

Referring now to the drawings, Fig. l shows an air tub'e' 10' provided with air by a blower 11 of known'c'onstruction and'drive'n by a motor or the like in a known way. The air tube 10 may be a onepiece construction or may include several tubesections joined in" endl to end-relation. l Fig. l shows .adjustable supports 12' engaging the underside of the air tube 10 for adjusting the elevation andfinclination thereof.

The left end of the air tube 150, Vas viewed in' Fig. l',

is provided with an' end w'all 13" formed withv an opening 14, and a cover plate 15" is pivotally connected, for example, by a screw 16 to end wall 173 so thaty this cover plate 15 may befturned to andv from a position closing the opening 14. Thecover plate 15 may be xed in its closingposition by a removable screw 17. As will be apparent from thefdiscussion which follows, plate 15 and opening 14 fornita closu-remeans which provides a pas sage throughy which various parts may be inserted into A current Supply means also is connected tothe nozzle and ignition .ass'emruy and extends therefrom along' the interior of the air tune toward an end portion there' `of distant from the' name guiding means, andthis. c'urf` I Furthermore, an air control means is o'on` nected to the nozzle and ignition assembly for controlling- Finally, a closure means is located at 3 and removed from the interior of air tube without disturbing the latter, this opening 14 of course being large enough to permit the parts to pass therethrough.

The end portion of tube 10 distant from wall 13 thereof is formed by a vase casting 18 of a vertical flame burner, this casting 18 having an open top. A plurality of channel members 19 are fixed to and extend upv wardly from the open top of casting 18, and these channel members 19 are distributed about casting 18. A flame control means is located on top of the casting 18 for turning movement thereon. This llame control means takes the form of a cover 20 formed at its center with an opening 21 and carrying about this opening an upwardly Haring flame guiding member 22 of known construction. A plate 23 is fixed to the underside of cover 20 and is provided about its periphery and at its top face with a plurality of upwardly directed projections 24 which form between themselves passages extending tangentially to the nozzle which supplies the atomized fuel so that air in the interior of tube 10 flows through these passages to produce an eiicieut flame, in a known manner. The cover 20 carries at its outer periphery a plurality of annularly spaced projections 25 each of which is shorter than the distance between channel members 19 so that these projections 25 may be moved downwardly between the channel members 19 until cover 20 engages the top face of casting 18, and then the parts 20, 22 and 23 are turned as a unit to locate the projections 25 within the channels 19 so that in this way the cover 20, plate 23 and member 22, all of which form a flame control means, are turnable for llame adjusting purposes on the casting 18 but cannot be removed therefrom until the projections 25 are again located between the channel members 19.

ln accordance with the present invention, a nozzle i and ignition assembly 26 engages the underside of plate 23 and extends partly into an opening in the center of the plate 23. l This nozzle and ignition assembly includes a housing 27 in which the nozzle 28, of known construction, is located and in which the ignition electrodes 29 are located. The nozzle 28 is held against the bottom wall of housing 27 by a screw 30 extending through an opening in its bottom wall and engaging the nozzle 28. The left wall of housing 27, as viewed in Fig. l, is formed with an opening through which an oil supply duct 31 passes, this oil supply duct 31 being connected tothe nozzle 28 for supplying oil thereto in a known way.

The electrodes 29 also extend through the left wall of housing 27, and at the exteriorlof this left wall the tube 31 and electrodes 29 are clamped together by a clamp 32 which may, for example, take the form of a pair of resilient metal strips one of which engages the bottom side of tube 31 as well as the bottom sides of electrodes 29 and the other of which extends across the tops of the electrodes 29, these strips being connected together by bolts 33 and nuts 34 located between the electrodes 29 and oil duct 31.

Although` the housing 27 may be constructed in different Ways, it is preferred to form this housing from a bottom section 27b and a top section 27a, these sections having overlying lugs which are interconnected by fastening members extending through aligned openings in these lugs, for example. Openings are drilled through the wall of the lower section 27b to accommodate the oil duct 31 and the electrodes 29.

As is apparent from Figsfl and 2, the top of housing 27 is open so that the oil spray passes upwardly through the llame control means, and the parts 20, 22 and 23 may be turned as a unit with respect to housing 27 to adjust the llame in a known way. The housing 27 is resiliently maintained in engagement with the plate 23 by a leaf spring 35 engaging the inner bottom surface of the air tube 10 and being connected to the underside of the housing 27 in the particular example illustrated.

As is apparent particularly from Fig. 2, the oil duct 31 extends toward opening 14 and is joined adjacent to opening 14 with a coupling 36 having its interior in connection with the interior of duct 31 and passing through an opening in the side wall of air tube 10 where this coupling 36 is then joined to a line 37 leading from an oil pump. Parts 36 and 37 are removably connected to each other through any suitable known threaded members so that in this way parts 36 and 37 can be seperated and part 36 can be moved inwardly away from the side wall of air tube 10.

The electrodes 29 are respectively connected to a pair of electrically conductive lines 38, which are suitably insulated and which also extend along the interior of tube 10 toward the opening 14 thereof, these lines 38 being connected at their ends distant from electrodes 29 to an ignition transformer so mounted, for example, on the side of air tube 10.

In accordance with the present invention a means is provided for controlling the flow of air through the housing 27. In order to accomplish this result the bottom wall of housing 27 is formed with one or more openings 39 distributed about the screw 30. This screw 30 in addition to maintaining the nozzle in position on the bottom wall of housing 27 turnably supports a plate 40 having openings which can be aligned with the openings 39 in one angular position of plate 40, and this position corresponds to the maximum air ow through the housing 27. A rod 41 is turnahly connected at its right end, as viewed in Fig. 1, to the underside of plate 40 and extends along the interior of tube 10 to a point where the rod 41 is bent in substantially a right angle and extends through a slot in the side wall of tube 10. A nut is threaded adjacent the free end of rod 41 next to the inner surface of tube 10, and a second nut 42 threadedly engages the portion of rod 41 extending to the exterior of the tube 10. The slot 43 through which the rod 41 extends extends horizontally parallel to the axis of tube 10, and because of the small size of the openings 39 as Well as the openings in plate 40, the slot 43 can be relatively short in order to provide suicient movement for rod 41 to adjust the extent to which openings 39 are uncovered by the plate 40. As is evident from Fig. 4, the rod 41 is located to one side of the screw 30. In all positions of the rod 41 the slot 43 is covered by a washer 44 which is large enough to accomplish this result, so that in the adjusted position of rod 41 the slot 43 is closed. Thus, by loosening nut 42 it is possible to shift rod 41 from the exterior of the air tube to adjust the flow of air through the housing 27, and then the nut 42 is tightened to maintain the rod 41 in its adjusted position.` The nut 42 may also be removed from rod 41 so that the latter can be separated from the side wall of tube 10.

The above described structure operates in a known way. That is, the air llowing along the interior of tube 10 moves about the housing 27 through the tangential passages formed by plate 23 to swirl tangentially about the spray of oil and to mix therewith, and also the air flowing upwardly through lthe interior of housing 27 mixes with the oil and is burned, the ioil being supplied through duct 31 to the nozzle 28. When the apparatus is started a spark moves across the space between electrodes 29 adjacent to the tip of the nozzle in a known way.

Assuming now that for some reason it is necessary to make adjustments to the nozzle and ignition assembly or to perform other maintenance thereon, with the structure of the invention it is only necessary to uncover opening 14 by moving plate 15 away therefrom and to then disconnect wires 38, rod 41 and coupling 36 from the air tube. Then by grasping the rod 41 and duct 31 and pressing downwardly thereon the spring 35 is bent and the housing 27 moves downwardly from plate 23 and the operator may then simply remove these parts through v 1 t l the opening 14. The parts are reinserted and placed in their operative positions through the reverse of the above operations. A suitable elongated tool may be used by the :operator to compress spring 3S to facilitate the insertion of the upper housing portion 27a into the central opening of plate 23. The control rod 41 may be adjusted from the exterior of the air tube without removing any parts, as was described above, so as to adjust the ow of air through the housing 27.

It will be understood that each of the elements described above, or two or more together, may also iind a useful application in other types Vof oil burners diifering from the types described above.

Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can by applying current knowledge readily adapt it for various applications.

What is claimed as new and desired to be secured by Letters Patent is:

1. In a vertical flame oil burner, in combination, an elongated air tube; a rst housing means closing one end portion of said air tube; a second housing means closing an opposite end portion of said air tube; llame control means mounted on said rst housing means and having a passage transverse to said tube for controlling a llame which is propagated transversely to the length of said tube through said passage in said flame control means; a hollow housing located in said first housing means and communicating with said passage in said ame control means, said hollow housing having a wall formed with at least one air passage therethrough; a nozzle extending transversely to said tube and being located in said hollow housing for directing a ame transversely to the length of said tube and through said passage in said flame control means; ignition electrode means also located in said hollow housing; leaf spring means connected to said hollow housing and engaging an inner surface portion of said first housing means, for urging said hollow housing into engagement with said ame control means; fuel supply means connected to said nozzle in said assembly and extending therefrom along the interior of said air tube towards said second housing means, said fuel supply means being removably connected to said second housing means and adapted to be connected with a source of fuel located outside of said second housing means; current supply means connected to said ignition electrode means in said hollow housing and extending therefrom along the interior of said air tube towards said second houisng means and being removably connected to said second housing means; valve means located on said wall of said hollow housing for controlling flow of air through said air passage therein; operating means connected to said valve means for operating same and extending from said valve means through said tube to said second housing means and terminating outside of the same; and closure means in said second housing means opposite said opposite end portion of said air tube for closing and opening said second housing means for providing upon being opened, a passage through which said hollow housing and assembly together with said fuel supply means and current supply means may be removed from and inserted into Said air tube without disturbing the latter.

2. In a vertical flame oil burner, in combination, an elongated air tube; a first housing means mounted on said air tube for enclosing one end portion thereof; ame control means having a passage transverse to said tube and being mounted on said iirst housing means for controlling a llame propagated in a direction transverse to the length of said tube through said passage in said ame control means; a second housing means mounted on an opposite end portion of said tube, said second housing means having an end wall formed with an opening passing therethrough; a hollow housing located in said irst housing means and communicating with said passage in said ame control means, said hollow housing having a bottom wall formed with an opening passing therethrough; a nozzle extending transverse to said tube and located in said hollow housing for directing a ame transversely to the length of said tube means and through said passage in said flame control means; a screw member passing through the bottom wall of said hollow housing being connected to said nozzle for fixing the latter in said hollow housing; a member turnably carried by said screw member at the exterior of said bottom wall for covering said opening therein to a selected extent to regulate the air owing into said housing from the interior of said tube through said opening in said bottom wall; an elongated rod connected to said member and extending along the interior of said tube towards said end wall in said second housing means; means for adjustably Ifixing said rod to said second housing means so as to tix the position of said member; a pair of ignition electrodes also located in said hollow housing; a fuel supply duct communicating with said nozzle and extending through a wall of said hollow housing along the interior of said tube toward said end wall of said second housing means, said duct being removably connected to a portion of said second housing means adjacent said end wall and being adapted to communicate with a source of fuel at said portion of said second housing means; a pair of electrically conductive members extending from said electrodes, respectively, along the interior of said tube towards said end wall of said second housing means and being removably connected to said second housing means; and a closure plate connected to said end wall of said second housing means for covering and uncovering said opening in said end wall so that when said opening is uncovered, said hollow housing, with said nozzle and electrodes therein and together with said member, rod, fuel supply duct and pair of electrically conductive members may be inserted into or removed from said rst housing means and the interior of said tube, respectively, through said opening in said end wall.

References Cited in the le of this patent UNITED STATES PATENTS 1,723,031 Good Aug. 6, 1929 1,740,249 Klees Dec. 17, 1929 1,858,302 Marshall May 17, 1932 2,120,387 Bargeboer June 14, 1938 2,393,897 Glendenning Ian. 29, 1946 2,420,598 Jackson May 13, 1947 2,502,664 Nest Apr. 4, 1950 

